Just curious if MSS or PMTU blocking has anything to do with the problem.
In the 2 different Wireshark dumps, a relevant difference is MSS=1460 and MSS=1380 in the second one.
I'd recommend setting the local NIC MTU to a low value just to see if it has an impact. However, the Wireshark dump doesn't show packet fragmentation, so perhaps this isn't a problem at all?
In the 2 different Wireshark dumps, a relevant difference is MSS=1460 and MSS=1380 in the second one.
I'd recommend setting the local NIC MTU to a low value just to see if it has an impact. However, the Wireshark dump doesn't show packet fragmentation, so perhaps this isn't a problem at all?